javascript - 在 Angular Highcharts 折线图中添加自定义按钮

Question

我正在尝试在导出属性的 Angular Highcharts 折线图中添加 2 个自定义按钮

exporting: {
    enabled: true,
    buttons: {
        customButton: {
            text: 'Custom Button',
            click: () => {
                alert('You pressed the button!');
            },
        },
        anotherButton: {
            text: 'Another Button',
            click: () => {
                alert('You pressed another button!');
            },
        },
    },
}

但是这两个按钮没有显示。这里可能缺少什么逻辑？ Stackblitz

Answer 1

您好，我认为以下代码段会对您有所帮助:

chart: {
  type: "line",
  renderTo: "chart",
  events: {
    render(events) {
      let chart = this;

      if (chart.customButton) {
        chart.customButton.destroy();
      }
      chart.customButton = chart.renderer
        .button("custom button", 100, 40, () => {
          console.log("clicked.....");
          chart.exportChart({
            type: "application/pdf",
            filename: "line-chart"
          });
        })
        .add();
    }
  }
}

这里点击按钮，可以实现导出。此处的示例导出 PDF。

演示:

https://stackblitz.com/edit/highcharts-angular-functionality?file=src%2Fapp%2Fstackoverflow%2Fhigh-chart-question%2Fhigh-chart-question.component.ts

https://highcharts-angular-functionality.stackblitz.io/exportcolor

希望这对您有所帮助。